Resilient wheel.



-axial to each other.

VICENTE GIL-DELGADO Y OLAZABAL, MADRID, SPAIN.

RESILIENT WHEEL.

Specification of Letters Patent.

Patented Oct. 3, 1911.

Application filed October 27, 1908. -Serial No. 459,694.

To all whom it may concern:

Be it known that I, VICENTE GIL-DEL: GADO Y LAZABAL, a subject of theKing of Spain, residing at Madrid, in the Kingdom of Spain, haveinvented certain new and useful Improvements in Resilient Wheels, ofwhich the following is a specification.

This invention relates to a new system of resilient wheels applicable tomotor-cars and vehicles of all kinds. The different systems of wheels ofthis class with pneumatic tires are objectionable for the reason thatthe tires are subject to puncture when in use, and also subject tobursting under the influence of atmospheric changes. In order toovercome these objections an improved resilient wheel was devised bywhich the pneumatic tire, instead of being applied to the rim of thewheel, is applied independent thereof so as to supply the properresiliency without bringing it in direct contact with the ground. Thisarrangemnt also permits the tires to be made of a smaller size and lessexpensive, without diminishing the resiliency of the wheels.

The invention consists of the construction of the resilient wheelhereinafter described and finally pointed out in the claim.

In the accompanying drawing, Figure 1 represents a side-elevation of myimproved resilient wheel, part being broken away. Fig. 2 is a verticaltransverse section drawn on line 2, 2, Fig. 1, and Fig. 3 shows indetail on a reduced scale the sliding connection between the parts.

Similar letters of reference indicate corre sponding parts.

The improved resilient wheel consists of the following parts: Two disksA and B, of equal size, are arranged parallel and co- The outer disk Ais provided with eight radial shoulders or ridges a which support attheir inner edges a ring b. The ring Z) can be removed at will, it beinginclosed by a cover H, which is hinged at one point of the ciroumferenceand secured at a diametrically opposite point by a suitable lookingdevice so as to inclose the ring b. The disks A and B are connected witheach other by screws o and sleeveshaped nuts 0 so as to secure therebyin a reliable manner an exterior ring C, which ring is securely held inposition by the screws and sleeve-shaped nuts and provided with exteriorgrooves and ribs for preventing skidding. The inner edges of the ringare provided with recesses (Z for fitting over the circumference of therings A and B. ,Vithin the casing formed by the disks A and Band thering or tire C is arranged a movable member D, which is seated by itscenter-portion on a hub Gr into which the axle of the vehicle is fittedand the inner part of which may be made of any suitable shape, accordingto the nature of the trans mitting gearing to be used.

In the space within the ring Z) a ring F is arranged on which is placeda pneumatic tire T, the circumference of which is placed in contact withthe inner circumference of the ring b. The disk-shaped member D isarranged between the disks A and B, the member D being placed on the hubGr. The flange of the hub Gr, the member D and the rim F provided withextension-sleeves e are all connected by means of screws or bolts f andnuts g, as shown in Fig. 2. The pneumatic tire T may be made of tubularshape and fitted around the rim F and held in proper position on thesame by its own expansion in the usual well-known manner. The disks Aand B are connected by means of four studs E, which are adapted to slidein radial slots s of the member D and the corresponcling transverseslots t which are arranged in the disks A and B as shown in Fig. 3. Theaxle moves eccentrically by means of the slots and afterward resumes itscentral position so as to transmit motive force from the inner portionof the parts toward the outer part, whatever be the system of gearsemployed. The pneumatic tire T absorbs the shocks incident to usewithout subject-ing the pneumatic tire to liability to damage bypuncture or atmospheric influences. Screws r seated in the diskD enterat their inner ends the outer ends of the slots s, and thereby limit theeccentric movement of the disk; said screws are adjustable radially ofthe slots and by adjusting the same a greater or less relative movementof the wheel parts is permitted.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

A resilient wheel comprising outer and inner disks of equal sizearranged parallel and co-axial with each other and provided with slots,radial ridges on the outer face of the outer disk and forming inwardlydisposed shoulders, a ring resting against said shoulders, a movablemember arranged be- 7 crossing the slots of the disks, studs passingthrough said member and engaging in said slots,- a hubhaving a flangeand pass1ng through the center of said member, b0lts passing throughsaid flange and member, a rim on said b0its, sieeves on said b0lts andholding said rim spaced from said member, a tire on said rim andengaging said ring, and screws radially adjust-able at their ends insaid slots for 1imiting the movement of said studs. Y

In testimony that I claim the foreg0ing as my invention, I have signedmy name in presence of two subscribing witnesses.

VICENTE GIL-DELGADO Y OLAZABAL.

Witnesses:

J os ROEB, LOCADIA LPEC.

Copieslof this patent may be 0bcained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

